5505505055550 has 48 divisors (see below), whose sum is σ = 15170725045680. Its totient is φ = 1468134681120.

The previous prime is 5505505055527. The next prime is 5505505055591. The reversal of 5505505055550 is 555505055055.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 5505505055496 and 5505505055505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2039074597 + ... + 2039077296.

It is an arithmetic number, because the mean of its divisors is an integer number (316056771785).

Almost surely, 2^{5505505055550} is an apocalyptic number.

5505505055550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5505505055550 is an abundant number, since it is smaller than the sum of its proper divisors (9665219990130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5505505055550 is a wasteful number, since it uses less digits than its factorization.

5505505055550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4078151914 (or 4078151903 counting only the distinct ones).

The product of its (nonzero) digits is 1953125, while the sum is 45.

The spelling of 5505505055550 in words is "five trillion, five hundred five billion, five hundred five million, fifty-five thousand, five hundred fifty".